Mazda mx5 erratic idle. Perhaps the general idling is ok; but something specific going on when pulling off into first. Faulty Mass Airflow Sensor Symptoms: Mazda MX-5. The timing was previously very advanced, around 14. I took the car down the road and when stopped the engine idle was very erractic - pulsating from 500rpm to 800rpm, up and down a few times before settling at 800rpm. 5 engine. Jump to Latest 10K views When it does this if I step on the gas it just bogs down but the erratic idle stops (the rpm's don't bounce around). Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Sounds a lot like the idle speed control thingy to me. Then after driving a while and coming to a halt at a set of lights for instance it fluctuates all the I have recently bought a 1991 MX5 S-special to replace my 1991 MX5 UK spec. Getting a bit worried now, tried disconnecting the battery with engine cold yesterday night. T ake out the wire which turns off the computer. Timing was reset to normal Idle Adjuster Screw, adjusted idle to idle around 800-900rpm But, the car then OCCASIONALLY started to randomly search at idle. Work with confidence using our manual. Once the car warms to operating temperature the car will idle at around 1500rpm then after Bought a mk2. Idle on both 1. 8 posts • Page 1 of 1. After 10 minutes with the battery off I reconnected and started and let it idle for 20 minutes, now 90 miles later with all possible kinds of driving done it still keeps dropping too low and bounce between 500-1000 or so every damn time I drop the clutch. The mass air flow sensor or MAF sensor is part of the intake system in Mazda MX-5 responsible for measuring the amount of air entering the engine. You can either go to the local parts store and ask them to scan the vehicle for you, or you can do this yourself. Runs great, but idles erraticly in a 100-200 rpm band around whatever idle speed is set, like 850. To start with it happened intermittently when starting from cold, but seems to be getting gradually worse. If you’re getting these readings I wouldn’t be too worried about the idle pressure as long as it’s reading something. I put the car away at the end of November for the winter and the battery went flat. Which Mazda MX5 model have you got? We make no distinction between the MX5 and the Eunos Roadster. On the first cold start the revs stayed high for a short amount of time then settled to around 900 rpm. Top. Remember Me? Join us now! Site Navigation. We also operate 3S Mazda Mx-5 2013. 6L engine, this article is intended to help you understand how the ISC (Idle Speed Control) system should work and how it may fail (my experience). my advice would be to first spray a load of injector cleaner through the throttle body. my. 3. The idle adjustment screw did almost nothing when turned, and had to be wound right out to keep idle revs even close to reasonable. In the last couple of weeks this has developed a fault. Occasionally on idle, the car will blip, as though one cylinder has missed. This was done by an MX5 Specialist garage. I changed the air filter for a fresh one, checked all the hoses and connectors - all fine. Here are the most common symptoms of a bad or failing MAF sensor: Idle Issues– Your MX-5 may run rich or lean when idling, or it may also idle erratically. Spark plugs prematurely Mazda 6 1st Generation (2002-2008) Engine / Drivetrain. Stopped the engine, had a look, gave it 5 minutes and it was fine until later in the You can try one or two things, start up and leave it to idle for 15 mins see if it learns idle. PistonHeads » Gassing Station » Japanese Cars » Mazda MX5/Roadster/Miata. 0 kg/cm2. gandolfstwin 22 August 2015 10:39 4. Idle vacuum is 15 inches, which is below spec. Car Specialist. It is only when it is stopped in park or in drive. 5 MX5 and didn't get quite the same feeling of it cutting out when pulling off. 65000 mikes. Base idle on both should remain unchanged with the little jumper wire between TEN and GND in the Although, as I said, I have found numerous posts about this problem, I really haven’t found a definitive solution - e. net/garage/KnowYourCar/S7_Idle. Cheers David Reply With Quote 1st March 2007, 11:02 #8: 3198miata-sg. Help/Rules: Calendar: Help/Rules: Calendar: NA (1990-1997 try and get in touch with JW of the Singapore MX5 club. Moderators: timk, Stu, zombie, Andrew, -alex, miata. check those, don't replace anything before you're sure what's causing it. The last year or so ago the car started misfiring and the idle was very erratic. cleaning the crud away upsets the settings the ecu has learnt, so normally the throttle body has to be reset after cleaning to obtain a steady idle. Also the Idle Adjuster Screw was turned up to maximum idle. some suggestions involve the battery, some the fuel line, We are the distributor of Mazda vehicles & spare parts based in Malaysia. Trip mileage was lost. You're done. It happened on It starts ok, and initially the idle is fine but yesterday after leaving it for a few minutes the idle started to rise and fall between about 1000 -> 400 rpm. Occasionally the idle surges to above 1000 RPM, then drops and stalls. I have noticed when cold, the car idles at 1800 to 2000 rpm. While the exact method of electrification Search Recon Mazda Mx-5 Malaysia Automatic Cars for sale in Malaysia. I left it runing for 15 minutes and the idle was not perfectly smooth as it dips very slightly every 4 or 5 When the problem starts, the check engine light will come on and the idle will begin to surge anywhere from 0 (it stalls) to 1500 rpm. Ive had a slight idle issue since i bought the car (100k mi). the more gas I give it it stays bogged until it comes out of it and the RPM's rev to normal and I SOURCE: A 92 Mazda mx3 with a 1. Audio, Electronics and Lighting questions and answers. check idle again, with and without this wire it should be the same. Come join the discussion about performance, modifications Mazda M-TIPS • Nov/Dec • 2005 2006 MX-5 RI4786 Oil Pressure Gauge Fluctuates The 2006 MX-5 oil pressure gauge needle will fluctuate, indicating real-time oil pressure, depending on engine RPM. If the idle is low, then there is a sensor that is providing incorrect information Mazda has officially confirmed that the 2026 Mazda MX-5 Miata will undergo electrification, marking a pivotal moment for this iconic sports car. . 2016 Westfield SEiW MX5 1. Anybody any ideas the cause for this erratic behaviour and, more Well I picked up a mk1 1. Search Fixya. Rrrracer Experienced MS/Extra'er Posts: 226 Joined: Thu Jun 09, 2016 3:40 pm. Come join the discussion about performance, modifications ISC (Idle Speed Control) Troubleshooting, Replacement, Repair. but a lot of modern cars have the idle control dealt with by a stepper motor, which adjust the butterfly to maintain the idle. I think I might have a similar problem on my 1. The most common reasons a Mazda 5 has rough idle are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. 8 ts2 petrol. " Next step is to clean the throttle body and repeat what i did previously. The engine is running rough when idling, feels like a misfire, and loses power when you try to pull away. 6 mk1? On start up it idles pretty high. Driving your MX-5 with a bad MAF sensor can damage the engine, so you must act urgently to avoid more expensive repairs. If your CX-5’s check engine light is on, there will be codes stored that can help you determine what part of your car’s engine is having problems. Compare second hand car prices, features and calculate installments on Carlist. miata. 5 Arctic (2004) around Easter, with problems as described in title, idle was erratic, car bogged down when throttle blipped, took a lot of turning over to start when warm (but not when hot or cold). My base 2001 mazda mx5 with a 1. I have an idle issue, hooray! I paid a local tuner to dyno tune and the tune is pretty great outside of this idle that he could not get right. But the major issue of shutting off when in nuetral or in idle seems to have subsided with this "fix. I would reset your base idle then try cleaning the idle control valve and throttle body. Compare second hand car prices, features and calculate monthly installments on Carlist. CX5 is still away from luxury brand because of the small annoyances like this, missing features, other rattles and being cheap on certain aspects, etc but it is a fun little car. the idle air control motor is located on or near the throttle body. I called Really erratic dropping to a near stall, up and down very fast, going up to as much as 2000rpm. I come from v6 car which was flat spot at idle. Mine has just started doing this after disconnecting battery for Experiencing an engine rattle in your Mazda MX-5 can be quite concerning, but fear not! This is a common issue faced by many MX-5 owners, and understanding the possible causes can have you on your way to a smooth-running engine in no time. It's now a bit more erratic on warm up but once warm it's running pretty well. Search Recon Mazda Mx-5 Cars for sale in Malaysia. There is no manual way to adjust the idle. Bad Idle Air Control Valve. 8L engine swap, Magnaflow High-Flow Cat Converter Reply With Quote 24th May 2015, 11:35 Idle speed = Idle speed is 850 rpm +/- 50. 6 Eunos Meisterr's automatic standard trim now gone! 2nd place at MX5 OC 2015 Spring Rally in modified MK1 section 1. I have the replacement vent Yeah; this is also what we thought at first as we are used to Diesel cars. This is whereby the ECU is recalibrated. A rich condition is when there is not enough air relative to the It Can do. 8. Or, very occasionally, drops pretty low for a shirt Once up to temperature, if you're sat at a set of lights out of gear, without your foot on the clutch, the idle becomes very sporadic and you can hear it misfire- it sometimes gets to Unfortunately, on this vehicle, the base idle is 100% computer controlled. I got myself my first MX5 in June last year and I'm loving it. Mazda CX-5 Rough Idle Diagnosis Start With the Check Engine Light. change the idle air control motor and check to see if the ports are clogged, this too will cause surging idle. The engine will idle at 850rpm then suddenly. more power and no detrimental effect on fuel economy either. sprinkles08. ISC (Idle Speed Control) Troubleshooting, Replacement, Repair. This easy free mod will give you noticeably better pick-up. On my lunch break I gave the local Mazda dealer a ring who had no idea but suggested I bring it into them for an “invstigation”. From exploring the forums, it looks like the It tells you what you should check for erratic idles but give little to no information on how to do it. I disconnected the battery to charge it, now when i reconnected it i got a couple of warning lights and idle hunts. We distribute a selected range of Mazda vehicles & spare parts in Malaysia & Philippines. If you have an idle problem with the unmodified NA 1. Get repair estimates and expert advice on RepairPal. Gave it a good old run around and the idle seems a bit more stable now, just a bit of a swing between 800 - 900 rpm on idle. but on idle. Erratic Idle/Bogged acceleration. How do I install a 1991 Mazda Miata left vent window? 2 Answers. engine hesitation or jerking during acceleration, erratic idling, misfires Intermittent Erratic Revs When Driving/cutting Out/not Starting. g. 8 petrol rough erratic idle. h After a few minutes it’ll drop to idle despite being part-throttle. If you’re noticing that your RPM are constantly going up and down, even when you’re not accelerating, it’s likely that you have a bad idle air control valve. what do you mean erratic? is the car vibrating at normal idle speed? a number of things can cause a harsh idle, it good be bad fuel, bad injectors, bad engine mounts. Most of them Check engine light came on just today. He recommended that I get a genuine Mazda one, £ Check common causes of rough idle in your Mazda MX-5 Miata, such as vacuum leaks and ignition coil issues. Starts and runs fine through the range, just swinging around on idle. 0-3. Defective or dirty mass air flow sensor (MAF) in your Mazda MX-5 can result in loss of power, uneven engine running, erratic idling, misfires, poor exhaust emission values including black smoke. You could use an MX5 valve (you may find the idle to be erratic etc). Spark plugs were changed. 5 since I got it (around 1000-1400rpm when warm) and when jumping GND and TEN and adjusting the throttle screw, it did nothing so I knew something wasn't working correctly. 6 and 1. 2. We constantly update the product assortment to the needs of our target groups. A bad idle control valve can also lead to fluctuations in the RPM. the inter-cooler will have no effect. Idle was a bit erratic but didn’t stall, worse with Step by step guides with pictures covering all areas of your Mazda MX5 ND 2015+ (Mk4). 16bit Speed Racer Posts: 2346 Joined: Wed Nov 29, 2006 3:51 am Our online shop provides nearly 6 items for Idle control valve (idle air control valve) MAZDA MX-5 in the premium segment all across Europe. Apart from that you may want to get some names of local mx5 mechanics and see what they have to say. Re: Mazdaspeed Miata Idle Oscillation ive never taking my mx5 one apart. 8 - 6sp - Torsen - MSM turbo - MS3 Pro - 2. By Ross Kuhre (Stock 93 MX-5, C package, 130k mi). The warning lights did go out after a run up the street. 8 should be steady at between 850 to 950 rpm. 6 I had a few years ago): https://www. 3L I-4. The mass air flow sensor is part of the engine’s intake system and is located between the air filter box and the throttle valve. MX5 low idle and starting problems with warm engine My MX5 has often very low idle when car in neutral - on the - Mazda 2000 MX-5 Miata question. 0 % 34% of the time it's the Mazda don’t specify a pressure at idle but with a fully warmed up engine at 1000rpm the pressure should be 2. MX5 mk4 Manual Idle-up speed (MT: Neutral position, AT: P, N position) No load: 660—760 rpm (MT), 670—770 rpm (AT) The owner says the engine smokes on cold startup, which goes away as the engine warms, and has an erratic idle - will idle high (1500 rpm) then return to normal after a tap of the gas. The car drives ok, A common mk1 problem is called Idle Droop, so maybe try this fix (it worked on a 1. Posted on Aug 04, 2009 Mazda 5 1. not suggesting everyone clean their throttle bodies but I think if it doesn’t respond to a reset and relearn then further investigation is required. If you isolate your problem to the ISCV (Idle Speed Control Valve) Erratic Idle RPM NA (1990-1997) General Discussion. 8 petrol - Mazda 5 1. A forum community dedicated to Mazda MX-5 Miata owners and enthusiasts. Very lumpy but moves smartly off idle with an occaisional hiccup. 6 Mk1 Eunos 1991 JRSC in classic red. Anyone have this issue before with either the miata or any other vehicles? 2017 Mazda mx5 with 62,000 kilometres. The car will stall a lot if I am coasting in neutral or at a complete stop. At idle, the oil pressure gauge needle will drop as low as the first or second line segment above the “L” mark. Dropped the advance in the idle region down to 12 as this seem to give the best stability. The manual doesn't give any misfire diagnosis. Come join the The idle on this vehicle is not adjustable in the sense that traditional carbureted vehicles were in years ago. If you isolate your problem to the ISCV (Idle Speed Control Valve) I have an erratic idle with my 2014 mazda 6 2. I believe these are misfires? Not sure as I’ve never dealt with misfires in my life. But the good news was that Mazda still got things pretty right when it released the MX-5 Mk3, because while it perhaps wasn’t quite as engaging a driving machine as the first two, it was still pretty There is a Mazda TSB for erratic idle which relates to carbon deposits in the throttle body, I’m. It would misfire for a while, and Test drive went well. Second gear : Join Date: Jan 2004 Welcome to MX5 Parts, Europe's largest and most dedicated Mazda MX5, Miata and Eunos Roadster specialists. At its core we put brand quality of the Idle control valve category for MX-5 at the highest technical standard. The annoying part is the small shake/vibration in the mazda but you learn to live with it eventually. Also, the last one I checked had a very low impedance, the driver may get hot and degrade over time, the PCB trace for the idle valve is also not designed for more than 2 amps continuous current. We have the widest range of parts and accessories at the most competitive prices, and offer same day despatch on orders received before 3pm. Erratic engine performance; Potential damage to other components, such as the timing chain guides Could possibly be a sticky/worn idle control valve but this could also cause some issues when the engine is warm. Then take it for a drive round giving it a bit of work to do on hills and various speeds in When the erratic revs are showing on the rev counter the engine appears to be behaving perfectly normally. Vehicle is hesitating during acceleration, idling, and cruising at constant speed. Browse Categories Answer Questions Erratic idle on car? I've had a slightly high idle on my mk2. 8 eng and manual trans has an idle problem. 8 yesterday and it has a couple of issues, most of which I think I have found the issues but the one i'm not sure about is the erratic idle. My MX5 has spent the last two weeks sat on my parent’s driveway undriven as I had to borrow a more practical car for a while. 0-4. Just doesn't feel completely right as we had also test driven other petrol cars as well as the MK2. The timing belt and water pump have recently been changed by the previous owner, the engine has done 61,000 miles. Because the car hasn’t been run for so long the ecu On that front, any advice about how much I should be looking at paying for them to investigate this erratic idle problem? And should I seek out a mazda specialist (in west london ideally) or should any decent garage be able to handle this? Sorry for all the different questions, but I did warn in the title this was a “newbie” post About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright The new air valve made no difference but when I fitted a second hand throttle body with it's idle control valve it seemed to work. When the mass airflow sensor has gone bad, you’ll definitely feel it. The best way to determine if your idle air control valve is the issue is to check The idle on my car has been very erratic recently, fluctuating from 1200rpm to almost stalling at times though it never does actually stall. DDT_UK 20 March 2015 22:31 17. The Mazda MX-5 Mk3 had a tough gig, because the Mk1 and Mk2 cars were massive hits, and rightly so. A forum community dedicated to Mazda MX-5 Miata owners and enthusiasts Board index Mazda MX5/Miata/Eunos MX5 Audio, Electronics & Lighting; high and erratic idle. my - Page 2. 0 kg/cm2 and at 3000rpm it should be 3. 8ltr v-6 while at an idle. MK3 2007 RED & CARBON WRAPPED 1800GT 1st at MX5 OC 2018 Spring rally lightly modified section now gone! MK1 '91 Classic red 1. Also be sure to turn the wheel full lock right to full lock left to ‘recalibrate’ I have the following issue with a MX5 mk1 1. 3kg/hp. Hi, We have an 06 Mazda 5 1. Tbd this weekend if this fixes the residual shaky idling issue ill report back. 6 Eunos Meisterr's nothing to report! now gone! MK1 '91 Classic red 1. effect). It was, in effect, Rocky III – a similar premise but with a glossier look and feel. The timing is automatically set by the PCM based on input received from the various sensors located in the engine and transmission. 1991 Mazda Miata ]BRG #3306, Mods: '99 1.